{"id":"OSV-2026-653","aliases":[],"status":"published","title":"Heap-buffer-overflow in generic_unpack","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=507413960\n\n```\nCrash type: Heap-buffer-overflow READ 2\nCrash state:\ngeneric_unpack\nexr_decoding_run\nImf_4_0::checkCoreFile\n```","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-04-30T00:13:25.604536Z","modified":"2026-04-30T00:13:25Z","affected":[{"source":"osv","ecosystem":"OSS-Fuzz","package":"openexr","ranges":[{"type":"GIT","events":[{"introduced":"39b9d241cdcd4c95b7916992b8872d2620f9ac7a"},{"fixed":"f448690ec24ca20f1664541b27daf2f120973f28"},{"introduced":"d948c6729c30cf15eaade9903ca0186d56a22d41"}]}],"versions":["v3.3.10","v3.3.10-rc","v3.3.10-rc2","v3.3.11","v3.3.11-rc3","v3.3.4","v3.3.4-rc","v3.3.5","v3.3.5-rc","v3.3.5-rc3","v3.3.6","v3.3.6-rc","v3.3.6-rc2","v3.3.6-rc3","v3.3.6-rc4","v3.3.7","v3.3.7-rc","v3.3.7-rc2","v3.3.7-rc3","v3.3.7-rc4","v3.3.8","v3.3.8-rc","v3.3.9","v3.3.9-rc","v3.3.9-rc2","v3.4-alpha","v3.4.0","v3.4.0-rc","v3.4.1","v3.4.1-rc","v3.4.1-rc2","v3.4.10","v3.4.10-rc","v3.4.11","v3.4.11-rc","v3.4.11-rc2","v3.4.11-rc3","v3.4.2","v3.4.2-rc","v3.4.2-rc2","v3.4.3","v3.4.3-rc","v3.4.3-rc2","v3.4.3-rc3","v3.4.4","v3.4.4-rc","v3.4.4-rc2","v3.4.5","v3.4.5-rc","v3.4.6","v3.4.6-rc","v3.4.7","v3.4.7-rc","v3.4.8","v3.4.8-rc","v3.4.9","v3.4.9-rc"]}],"references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=507413960","tags":["report"]}],"sources":{"osv":[{"id":"OSV-2026-653","title":"Heap-buffer-overflow in generic_unpack","description":"OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=507413960\n\n```\nCrash type: Heap-buffer-overflow READ 2\nCrash state:\ngeneric_unpack\nexr_decoding_run\nImf_4_0::checkCoreFile\n```\n","status":"published","published":"2026-04-30T00:13:25.604536Z","modified":"2026-04-30T00:13:25.604829Z","updated_at":"2026-11-02T15:52:50.263679Z"}]}}